Finding the Fourth Proportional to 76,543.94, 105,630.06 and 42,555.53

Step by Step Solution

1. Step 1: Write the proportion equation
   76,543.94 : 105,630.06 = 42,555.53 : x
2. Step 2: Convert to fraction form
   76,543.94/105,630.06 = 42,555.53/x
3. Step 3: Cross multiply
   76,543.94x = 105,630.06 × 42,555.53
4. Step 4: Simplify right side
   76,543.94x = 4,495,142,659.08
5. Step 5: Solve for x
   x = 4,495,142,659.08/76,543.94
6. Step 6: Final answer
   x = 58,726.31